It is an old tradition in Austria for newborns to be given presents by relatives, neighbors and friends. The Weisat, as this gift-giving is also called, probably has its origins at the birth of Christ, when the three holy kings bestowed small gifts on the child Jesus.
Where traditionally food and strengthening meals were given to the woman who has recently given birth, today it is mostly cuddly toys, rompers and diapers that are used to celebrate the birth of the newcomer. Everyone wants to get to know the newcomer and you don't want to stand there empty-handed.